Home / 1,310,716.48-1,808,673.42-729,895.72

Finding the Fourth Proportional to 1,310,716.48, 1,808,673.42 and 729,895.72

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Solution

The fourth proportional to 1,310,716.48, 1,808,673.42 and 729,895.72 is: 1,007,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,716.48 : 1,808,673.42 = 729,895.72 : x
  2. Step 2: Convert to fraction form
    1,310,716.48/1,808,673.42 = 729,895.72/x
  3. Step 3: Cross multiply
    1,310,716.48x = 1,808,673.42 × 729,895.72
  4. Step 4: Simplify right side
    1,310,716.48x = 1,320,142,988,135.76
  5. Step 5: Solve for x
    x = 1,320,142,988,135.76/1,310,716.48
  6. Step 6: Final answer
    x = 1,007,191.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.